Add util.getObjectKeys for better diagnostic.

1 files changed, 14 insertions, 5 deletions

diff --git a/lib/util.js b/lib/util.js
index 4648ee9..4f3964e 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -1,4 +1,4 @@
-/*global exports: false, require: false, console: false */
+/*global exports: false, require: false, console: false, Cc: false, Ci: false */
 /*jslint onevar: false */
 // Released under the MIT/X11 license
 // http://www.opensource.org/licenses/mit-license.php
@@ -28,12 +28,11 @@ var {Cc,Ci} = require("chrome");
  * </pre>
  */
 exports.heir = function heir(p) {
-    function f() {};
-    f.prototype = p.prototype;
-    return new f();
+    function F() {};
+    F.prototype = p.prototype;
+    return new F();
 };
 
-
 exports.getBugNo = function getBugNo(url) {
     var re = new RegExp(".*id=([0-9]+).*$");
     var bugNo = null;
@@ -187,3 +186,13 @@ var filterByRegexp = exports.filterByRegexp =
         return "";
     }
 };
+
+exports.getObjectKeys = function getObjectKeys(obj) {
+    var keys = [];
+    for (var key in obj) {
+        if (obj.hasOwnProperty(key)) {
+            keys.push(key);
+        }
+    }
+    return keys;
+};
\ No newline at end of file